10) Gavin Muirhead ~ Janet Douglas

{Nisbet p 266} ... when it came to the youngeƒt Brother, Gavin Muirhead of Lachop, who married Janet Douglas, Daughter of William Earl of Selkirk, afterward Duke of Hamiltoun,...

{Research performed by Diane Baptie, Member of ASGRA, 2002} According to information contained in the Lanark sasines, Claud was listed as a son of Sir James Muirhead of Lachop. Also noted as a son of Sir James was “Gavin Muirhead of Lachop, his spouse Janet Douglas, natural daughter of William Duke of Hamilton.”